Inventor
IWATA TOSHIHARU
JP33 patents
⚠️ This page may combine multiple inventors who share the name “IWATA TOSHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON DENSO CO
16 patentsUS4513716AApr 30, 1985
Ignition timing control system with knock control for internal combustion engines
NIPPON DENSO CO42 citations92
US4489692ADec 25, 1984
Ignition timing control system for internal combustion engine with knock sensor
NIPPON DENSO CO30 citations90
US4539957ASep 10, 1985
Ignition timing control system for internal combustion engines
NIPPON DENSO CO26 citations81
US4760828AAug 2, 1988
Ignition timing controller for multi-cylinder engine
NIPPON DENSO CO20 citations78
US5404854AApr 11, 1995
Knock control system for internal combustion engine
NIPPON DENSO CO11 citations73
US4590565AMay 20, 1986
Ignition timing control for compensating knock in both steady-state and transient state
NIPPON DENSO CO18 citations73
US4541382ASep 17, 1985
Method and apparatus for ignition timing control of internal combustion engine
NIPPON DENSO CO11 citations73
US4517944AMay 21, 1985
Ignition timing control for internal combustion engines
NIPPON DENSO CO16 citations73
US4467764AAug 28, 1984
Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine
NIPPON DENSO CO8 citations73
US4452206AJun 5, 1984
Ignition timing control system for internal combustion engines
NIPPON DENSO CO8 citations73
US4498331AFeb 12, 1985
Knocking detecting apparatus for internal combustion engines
NIPPON DENSO CO13 citations71
US4480615ANov 6, 1984
Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine
NIPPON DENSO CO3 citations62
US4453521AJun 12, 1984
Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine
NIPPON DENSO CO3 citations62
US4452205AJun 5, 1984
Method and apparatus for controlling ignition timing in an internal combustion engine
NIPPON DENSO CO5 citations62
US4432322AFeb 21, 1984
Method and system for controlling ignition timing in a multicylinder internal combustion engine
NIPPON DENSO CO5 citations62
US4351282ASep 28, 1982
Ignition timing control system for internal combustion engine
NIPPON DENSO CO4 citations61
NIPPON SOKEN
15 patentsUS4112885ASep 12, 1978
Throttle valve control system for an internal combustion engine
NIPPON SOKEN77 citations94
US4153021AMay 8, 1979
Air-fuel mixture ratio correcting system for carburetor
NIPPON SOKEN34 citations92
US4036186AJul 19, 1977
Air-fuel mixture ratio correcting system for carburetor
NIPPON SOKEN35 citations92
US4274379AJun 23, 1981
Method and system for controlling ignition timing of internal combustion engines
NIPPON SOKEN26 citations82
US4261313AApr 14, 1981
Method of and apparatus for controlling ignition timing of an internal-combustion engine
NIPPON SOKEN25 citations82
US4211952AJul 8, 1980
Spark plug
NIPPON SOKEN26 citations82
US4344014AAug 10, 1982
Ignition spark plug
NIPPON SOKEN11 citations74
US4300490ANov 17, 1981
Air-fuel mixture ratio correcting system for carburetor
NIPPON SOKEN15 citations74
US4267482AMay 12, 1981
Ignition spark plug
NIPPON SOKEN9 citations74
US4020813AMay 3, 1977
Air-to-fuel ratio control means for carbureter
NIPPON SOKEN17 citations74
US4269154AMay 26, 1981
Ignition timing control system for internal combustion engines
NIPPON SOKEN14 citations73
US4269155AMay 26, 1981
Ignition timing control system for internal combustion engines
NIPPON SOKEN13 citations73
US4128998ADec 12, 1978
Overheat preventing system for exhaust gas purifier of vehicles
NIPPON SOKEN13 citations72
US4012906AMar 22, 1977
Overheat preventing system for exhaust gas purifier of vehicles
NIPPON SOKEN8 citations72
US4084560AApr 18, 1978
Engine air-to-fuel ratio control system
NIPPON SOKEN3 citations63